have any of you guys heard or know anyone who has put a ported and polished cylinder head on a cooper? IF so what kind of power gains have you/they experianced?

 

My 2004 S is in the shop getting the works done to it including ported and polished head. I will post more one the car is outta the shop.

 

I am interested also, however, porting and polishing alone doesn't do very much, it's in conjunction with other mods, that makes the difference.

Steve

 

sorry guys... i guess i should have made my post a little bit more clear. I port and polish cylinder heads for MINI's. I have seen a substantial increase in horsepower and torque when teamed up with a cam. However i have no idea if anyone has ported and polished a cylinder head and put it on the cooper. (i know the cylinder heads are the same except for some bits of the valve train)

I was just curious to see if anyone has checked to see if the cooper makes power with a P&P cylinder head and if anyone has tried it...

sorry for the consfusion

 

The power band of the stock engine indicates that the heads were designed for mid-range performance, which means you'll win no races. Porting to increase airflow on both the intake and exhaust at higher rpms will give you a race winner at the expense of low rpm punch. I have dealt with this on other type engines and was able to tune ignition, fuel, etc. to gain back some of the lost low end. Whatever, the added power at high rpm's is worth it to me! Get that Coop' rolling, then haul @$$! Do it! -Jeffy.